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How does your body know when to sleep and wake up? For a long time, scientists thought that your brain dictated your body’s internal clock. Now Australian and French researchers have found that the liver has a say, too.

While onboard the RV Investigator in 2017, scientists collected a large sponge, but that wasn’t the only thing they collected. Inside, they found 30 banded sand catsharks (Atelomycterus fasciatus). This was the first time sharks had been seen living in sponges, but it wasn’t the last.

Difficulty: Tricky Ahmad’s computer scientist mother gives him a binary stopwatch that counts minutes using only 1’s and 0’s – just like a computer! The binary stopwatch has 6 placeholders where the 1’s and 0’s appear. When the binary stopwatch is reset, all the placeholders are zeros. Ahmad finds a regular stopwatch, resets both stopwatches, […]

Have you ever wondered how your lungs move air around? Safety: This activity involves using scissors to cut into a plastic bottle. Ask an adult for help with this step and cover the resulting sharp edges with duct tape.

Difficulty: Tricky You have 2 glasses, each filled with 100 millilitres (ml) of soda. One contains cola and one contains orange soda. First, you take a spoonful of cola and mix it into the orange soda. Next, you take an equal spoonful of the orange-cola mixture and put it into the glass of cola. Which […]

Happy World Gratitude Day (21 September)! Our world definitely rocks and we’re celebrating it with this life-sustaining quiz. Can you get into the ozone and score a high five?

Difficulty: Fun The big rectangle below is made from 4 small rectangles. All the small rectangles are equal, meaning that they have the same size and shape. If the small rectangle’s short side is 8 centimetres, what is the length (long side) of the bigger rectangle?

This quiz is tied up with a rainbow! Can you earn that pot of gold? Or have you bitten off more than you can hue?

Not one, but 2 new Australian shark species have recently been described by CSIRO scientists and both have pretty cool appearances! CSIRO researchers Will White and Helen O’Neill lead the team of scientists who introduced the world to these new sharks, both found in deeper waters off north-western Australia. The CSIRO team first published the […]

Difficulty: Tricky Alex is playing a dice game with 2 standard 6-sided dice, one red and one blue. Each die has faces numbered from 1 to 6. Alex rolls both dice and adds up the numbers on the top faces. After a while, Alex notices that the sums are always between 2 and 12 and […]